CN105620468B

CN105620468B - Managing in electrified powertrain can be in the method for operating area in operating conditions

Info

Publication number: CN105620468B
Application number: CN201510815822.XA
Authority: CN
Inventors: A.H.希普; K.Y.金; J.怀斯
Original assignee: GM Global Technology Operations LLC
Current assignee: GM Global Technology Operations LLC
Priority date: 2014-11-21
Filing date: 2015-11-23
Publication date: 2019-01-18
Anticipated expiration: 2035-11-23
Also published as: DE102015119410A1; US20160144740A1; US9676294B2; CN105620468A

Abstract

A method of the mode of operation managing electrified powertrain, including multiple available action regions that at least one available action state that controller is identified by powertrain limits, each operating area represents the different range of operating conditions.Available action region includes limiting multiple undesirable operating conditions and allowing operating area to allow what operating area separated to avoid region with second for first, so that first and second allow operating area non-conterminous.Method identifies at least one ideal operation situation in each available action region, it determines the preferred factor for each current operating situation and each ideal operation situation and stabilizes factor, and determine for one in current operating situation and ideal operation situation to be identified as factor of the optimization operating conditions to produce required parameter value.

Description

Managing in electrified powertrain can be in the method for operating area in operating conditions

Technical field

The present invention relates to the methods that operating area in mode of operation is managed in electrified power transmission system of vehicle.

Background technique

Motor vehicles include being operable as promoting vehicle and providing the powertrain of electric power for vehicle-mounted vehicle electronics. Powertrain or drive system generally include engine, and engine provides function by multi-speed transmission for final drive system Rate.In some vehicles, engine is the internal combustion engine of reciprocating piston type.Speed changer stream can be supplied in speed changer Body or transmission oil are to lubricate component therein.

Hybrid vehicle promotes vehicle using the power source of multiple replacements, so that the dependence to engine power is minimum Change.Hybrid-power electric vehicle (HEV) is for example incorporated to electric energy and chemical energy, and is converted into mechanical output, with promote vehicle and Power is provided for any system of vehicle.HEV generallys use one or more motors (motor/generator), independently of interior Burn engine promotes vehicle together with internal combustion engine.Electric vehicle (EV) further includes the one or more electricity for promoting vehicle Machine and energy storage device.

Motor converts kinetic energy into electric energy, and electric energy can store in energy storage devices.From energy storage device Electric energy can be subsequently translated into the kinetic energy for promoting vehicle, or can be used for for electronic device, auxiliary device or other portions Part power supply.

Summary of the invention

The method in available action region in a kind of mode of operation of electrified powertrain of management is provided.Method passes through head First identify that multiple available action regions start at least one available action state of electrified powertrain, wherein at least one A available action state is one of multiple modes of operation of electrified powertrain, and plurality of mode of operation is corresponding Each mode of operation represents the different physical configurations of electrified powertrain.Electrified powertrain includes one or more A motor, speed changer and internal combustion engine, the internal combustion engine are seen to operate under engine speed and be turned round with output engine Square, wherein motor and internal combustion engine are operatively coupled to the input shaft of speed changer, and wheel of vehicle is connected to speed changer Output shaft is to export output torque, and motor and internal combustion engine cooperation are to rotate output speed driving vehicle via speed changer Wheel.Electrified powertrain further comprises controller, to determine and select the operation shape by electrified powertrain State limits in operating area optimization operating conditions and control internal combustion engine, motor and speed changer are from current operating situation It is converted to the operating conditions of optimization.Multiple available action regions in available action state each by have the first parameter and The operating conditions of second parameter limit, wherein available action region each at least partially through electrical under corresponding operating state The different physical configurations for changing powertrain determine.

First parameter and the second parameter can in operating conditions continuous variable relative to each other so that the of the first parameter One in one parameter value and the second parameter value of the second parameter can the first parameter the first parameter value and the second parameter In two parameter values another variation when keep constant.Multiple available action regions in available action state can include at least Region, the first admissible region and the second admissible region are avoided, is separated wherein the first and second admissible regions are avoided by region, so that Electrified powertrain is operated from the first admissible region is converted to the electrified power biography of the operation in the second admissible region Dynamic system needs to operate electrified powertrain in avoiding region and passes through fringe time.It is operated in avoiding region electrified Powertrain generates undesirable operating conditions, and feature for example can be the noise of electrified powertrain, vibrate, have some setbacks Property, power loss and responsiveness at least one of lack.

There is provided in the mode of operation of electrified powertrain manage available action region method, method include via Controller determines at least one available action state of electrified powertrain, then determines via controller and passes through at least one Multiple operating areas that a available action state limits.At least one available action state, which is seen under multiple operating conditions, to be operated, So that in multiple operating areas it is corresponding each represent multiple operations in corresponding one of at least one available action state The different range of situation.At least one available action state includes current operation status, so that multiple operating areas include passing through The current operating region that current operation status limits, and multiple operating conditions include the current operation shape in current operating region Condition.Method continues, and determines current operating situation via controller, and via the corresponding each of controller identification available action region Corresponding ideal state in a.In a subsequent step, controller is determined for the preferred factor of current operating situation and every One corresponding ideal operation situation, and further determine that for the steady of current operating situation ideal operation situation corresponding with each Surely change factor.Controller then determines the preferred factor and stabilisation of current operating situation ideal operation situation corresponding with each Factor, to identify the operating conditions of optimization.Controller is via control order electrification powertrain from current operating situation It is converted to object run situation.

At least one mode of operation be characterized by having the first parameter of the first parameter value and with the second parameter value Two parameters.Each is corresponding to the second parameter by corresponding first parameter value of the first parameter for corresponding in multiple operating conditions The combination of second parameter value determines, and current operating situation is limited by current first parameter value and current second parameter value.The One in one parameter value and the second parameter value is steady state value for current operating situation.Each corresponding ideal operation situation By another in one steady state value and the first parameter value and the second parameter value constant in the first parameter value and the second parameter value A corresponding ideal value limits, so that the operating conditions of optimization are by constant one in the first parameter value and the second parameter value Steady state value and corresponding to another corresponding ideal in corresponding ideal second parameter value and the first parameter value of optimization operating conditions One be worth in the object run situation and current operating situation limited.In one example, controller can inquire the first ginseng The dominant index of the potential change of one of numerical value and the second parameter value, so that dominant index can will be decided to be identification in determination Consider during the preferred factor and stabilisation factor of each ideal state of optimised operating conditions.

By way of example, at least partially through transition cost, dominant index and from the first and second admissible regions One of by avoiding another fringe time of the regions transform into the first and second admissible regions from limiting stabilisation factor. It is preferred that factor is limited by the factor based on performance, the factor based on efficiency and based at least one of factor avoided.Extremely At least partially through vehicle user make by being avoided region from being converted to from one in the first and second admissible regions One and second does not expect that the detectable ability of operating conditions is limited based on the factor avoided during another in admissible region. Method, which may further include to inquire, changes request, can be identified by controller, wherein changing request will request first One of parameter value and the second parameter value change into requested value.

Method can be via the corresponding requested operation in the first and second admissible regions of controller identification accordingly each Situation, wherein each corresponding requested operating conditions passes through the requested value and the first He of one of first and second parameter values Another corresponding ideal value in second parameter value limits controller and determines for the excellent of each corresponding requested operating conditions Select factor and stabilisation factor, and determine preferred factor for each corresponding requested operating conditions and stabilize factor with Identify the requested operating conditions of optimization.Controller is converted to the quilt of optimization with post command powertrain from current operating situation Request operating conditions.

The present invention provides a kind of method for managing electrified powertrain mode of operation, and method includes: via controller Determine at least one available action state of electrification powertrain；It is determined via controller and passes through at least one available action Multiple operating areas that state limits；Wherein at least one available action state is operable in multiple operating conditions；Its In multiple operating areas it is corresponding each represent multiple operating conditions at least one available action state in corresponding one Different range；Wherein at least one available action state includes current operation status；Plurality of operating area includes passing through The current operating region that current operation status limits；Plurality of operating conditions include the current operation in current operating region Situation；Current operating situation is determined via controller；Via the phase in each corresponding in controller identification available action region Answer ideal state；The preferred factor for being used for each corresponding ideal operation situation and current operating situation is determined via controller； The stabilisation factor for being used for current operating situation ideal operation situation corresponding with each is determined via controller；With via control Device determines the preferred factor of current operating situation ideal operation situation corresponding with each and stabilizes factor, optimised to identify Operating conditions.

The method further comprises: changing via control order electrification powertrain from current operating situation To optimised operating conditions.

The method further comprises: the characteristics of wherein at least one mode of operation is first with the first parameter value Parameter and the second parameter with the second parameter value；Each is corresponding by the first parameter for plurality of operating conditions corresponding First parameter value the second combining parameter values corresponding to the second parameter determine；Wherein current operating situation is joined by current first Numerical value and current second parameter value limit；Wherein one in the first parameter value and the second parameter value is for current operating situation Steady state value；Wherein each corresponding ideal operation situation passes through one perseverance constant in the first parameter value and the second parameter value The corresponding ideal value of another in definite value and the first parameter value and the second parameter value limits；Wherein optimised operating conditions are One in current operating situation and object run situation, the object run situation passes through the first parameter value and the second parameter value In one constant steady state value and corresponding in corresponding ideal second parameter value of optimised operating conditions and the first parameter value Another corresponding ideal value limit.

In the method, the first parameter and the second parameter continuous variable in the mode of operation relative to each other make Obtaining one in the first parameter value and the second parameter value can protect when another in the first parameter value and the second parameter value changes It holds constant.

The method further comprises: inquiring one in the first parameter value and the second parameter value via controller The dominant index of potential change.

The method further comprises: identifying one in the first parameter value of request and the second parameter value via controller A change request changed to requested value；Identify corresponding in the first and second admissible regions in each via controller Accordingly requested operating conditions；The wherein quilt that each corresponding requested operating conditions passes through one of the first and second parameter values Another corresponding ideal value in value request and the first and second parameter values limits；It is determined via controller and is used for each phase The preferred factor of operating conditions should be requested；The stabilisation for each corresponding requested operating conditions is determined via controller Factor；It determines for each corresponding preferred factor for being requested operating conditions with via controller and stabilizes factor, to know Not optimised requested operating conditions.

In the method, corresponding requested operating conditions are converted at least partially through to from current operating situation Response time limits stabilisation factor.

In the method, each mode of operation of multiple modes of operation represents the not jljl of electrified powertrain Reason configuration.

In the method, the corresponding restriction at least one available action state avoids region, first from allowing area Domain and the second admissible region；Wherein the first and second admissible regions are avoided by region and separate, so that the first and second admissible regions It is non-conterminous；It is changed into the second admissible region with to operate electrified powertrain from the first admissible region Electrified powertrain is operated to need to operate electrified powertrain in avoiding region and pass through a fringe time.

In the method, electrified powertrain is operated in avoiding region and generates undesirable operating conditions.

In the method, it is undesirable to which the characteristics of operating conditions is the noise of electrified powertrain, vibrates, has some setbacks Property, power loss and responsiveness at least one of lack.

In the method, each corresponding ideal operation situation corresponds in each corresponding admissible region first With in the second parameter value when operating conditions are lost in the lowest power of previous current value.

In the method, preferably factor by the factor based on performance, factor based on efficiency and based on avoid because At least one of element limits.

In the method, at least partially through vehicle user make by avoided region from first and second hold Perhaps one in region does not expect the detectable of operating conditions during being converted to another in the first and second admissible regions Ability is limited based on the factor avoided.

In the method, stabilisation factor is by transition cost, dominant index and through avoiding region from first and second One in the admissible region fringe time for being converted to another in the first and second admissible regions limits.

The present invention provides a kind of vehicle including electrified powertrain, and vehicle can be in the behaviour of electrified powertrain Make to operate under state, vehicle includes: the available behaviour in mode of operation of the controller execution for managing electrified powertrain Make the method in region, method includes: that at least one available action state of electrified powertrain is determined via controller；Through The multiple operating areas limited by least one available action state are determined by controller；Wherein at least one available action shape State is operable in multiple operating conditions；Plurality of operating area it is corresponding each represent at least one available action The different range of multiple operating conditions in state in corresponding one；Wherein at least one available action state includes current operation State；Plurality of operating area includes the current operating region limited by current operation status；Plurality of operating conditions Including the current operating situation in current operating region；Current operating situation is determined via controller；It is identified via controller Corresponding corresponding ideal state in each in available action region；It is determined via controller and is used for each corresponding ideal operation The preferred factor of situation and current operating situation；It determines via controller for current operating situation and each corresponding ideal behaviour Make the stabilisation factor of situation；The preferred of current operating situation ideal operation situation corresponding with each is determined with via controller Factor and stabilisation factor, to identify optimised operating conditions.

In the vehicle, electrified powertrain includes the motor for being operable as output motor torque, speed change Device and can operate under engine speed with the internal combustion engine of output engine torque, wherein motor and internal combustion engine are grasped Operatively it is connected to the input shaft of speed changer；Wherein wheel of vehicle is connected to the output shaft of speed changer, to export output torque；Its Middle motor and internal combustion engine cooperation, to rotate output speed driving wheel via speed changer；Wherein at least one operation The characteristics of state is the first parameter with the first parameter value and the second parameter with the second parameter value；It is defeated with the first parameter Torque and the second parameter is engine torque out.

In the vehicle, the characteristics of at least one available action state is the third parameter with third parameter value；Its In multiple operating areas include avoid region；Region is wherein avoided to determine at least partially through specified third parameter value.

In the vehicle, avoid region using the first and second boundaries as boundary, first and second boundary leads to respectively It crosses third parameter value and lower third parameter value limits.

In the vehicle, the first parameter is passed through by a restriction in speed changer and internal combustion engine, the second parameter A restriction in speed changer and internal combustion engine, and third parameter is limited by motor.

Geography can be easy in the detailed description made below in conjunction with the better model of the invention to implementation of attached drawing progress Solve above-mentioned the features and advantages of the present invention and further features and advantages.

Detailed description of the invention

Fig. 1 is the schematic diagram of the powertrain of hybrid-power electric vehicle.

Fig. 2 is showing the example graph of the mode of operation mapping of multiple operating areas in mode of operation.

Fig. 3 is the process of the method for operating conditions in the operating area for determine the mode of operation of electrified powertrain Figure.

Fig. 4 is showing the mode of operation mapping of Fig. 2 of multiple operating conditions.

Specific embodiment

Referring to attached drawing, wherein identical appended drawing reference is for indicating component similar or identical in various attached drawings, Fig. 1 signal Property show the powertrain 10 of electric vehicle, in also known as electrified powertrain 10 herein.In one configuration, Power transmission system of vehicle 10 may include 16 (example of the first traction motor 12, the second traction motor 14 and energy storage system Such as battery 16).To which power transmission system of vehicle 10 is configurable to the powertrain of the hybrid-power electric vehicle of vehicle (HEV), the powertrain (BEV) of cell electric vehicle or the powertrain (EREV) of extended-range electric vehicle.This vehicle is dynamic Power power train 10 can be suitable for promoting vehicle under only electric (EV) mode using one of traction motor 12,14 or both Value generates torque.

In one configuration, the first and second traction motors 12,14 can be mechanically coupled by speed changer 18.Speed changer 18 may include multiple rotation gears, clutch and/or other component (i.e. torque transmitter 20), the property of can choose And/or operatively individually or transmission input shaft 22 is connected to transmission output shaft 42 with being combined.

In one configuration, couple to 22 property of can choose of transmission input shaft the first traction motor 12, and speed changer Couple the second traction motor 14 to 42 property of can choose of output shaft.In one configuration, selectivity connection can pass through one Or multiple friction clutches, torque converter or other coupling arrangements are realized, can be integrated with axis 22,42, it is each to allow A motor 12,14 transmitting/reception torque under the order of transmission control module.

Speed changer 18 for example can be electrically-variable transmission (EVT), so that the input feature and output shaft 42 of input shaft 22 Output characteristic via continuously variable speed than without the fixed proportion with input shaft 22.For example, in some embodiments In, even if the input speed of input shaft 22 is zero, the output speed of output shaft 42 may be just.

Torque transmitter is bonded in speed changer 18 with (showing) property of can choose 20 jointly, to establish in input shaft Different advances and back-up speed ratio or operation mode between 22 and output shaft 42.It can be in response to vehicle condition and operator (driver) demand from a speed ratio or mode conversion to another.Speed ratio is usually defined as the input speed of speed changer 18 Divided by output speed.Thus low-grade location has higher speed ratio, and high tap position has relatively low speed ratio.

Electrically-variable transmission (including speed changer 18) can be designed as grasping under fixed gear (FG) mode and EVT Mode Make.Because electrically-variable transmission is not limited to speed transmission ratio, different operating states can replace gear and referred to as model It encloses or mode.When being operated under fixed gearing regime, the rotation speed of the output shaft 42 of speed changer 18 and the rotation of input shaft 22 Speed is at fixed proportion.Electrically-variable transmission is additionally configured to be achieved in height for being operating independently with final driving portion machinery Torque continuously variable speed ratio, automatically controlled starting, regenerative braking and tail-off idle running and starting.

In some designs, internal combustion engine 30, if Fig. 1 is can be used for via engine output shaft shown in dotted line 32 generate torque.Torque (engine torque is also known as herein) from engine output shaft 32 can be used for directly promoting vehicle Powertrain 10 (i.e. in HEV design) provides power for generator 34 (i.e. in EREV design).Generator 34 is with can (arrow 36) is transmitted electric power to battery 16 in a manner of allowing battery 16 to recharge.Clutch and Buffer Unit 38 can be used for selecting Property engine 30 and speed changer 18 are connected/disconnected.Torque can finally from the first and/or second traction motor 12,14, And/or engine 30 is via the defeated of the second traction motor 14 (and/or speed changer 18, if the second motor 14 omits) Portion 42 is transmitted to driving wheel group 40 out.

Each traction motor 12,14 may be embodied as multi-phase permanent body/AC induction machine, be rated for about 60 volts It is to about 300 volts or bigger, the design depending on vehicle.Each traction motor 12,14 can be via power modulus of conversion Block (PIM) 44 and high-voltage bus item 46 are (it should be noted that for clarity, extend to the high-voltage bus item of the second traction motor 14 Through being omitted from Fig. 1) it is electrically connected to battery 16.PIM44 be usually configurable to for by DC power be converted to AC power or according to Need reverse transformation.When 12 active operation of traction motor is generator, such as by being obtained during regenerative braking event Energy, or by internal combustion engine 30 drive when, the property of can choose using from the first traction motor 12 and torque and For the charging of battery 16.In some embodiments, such as plug-type HEV (PHEV), in 10 idling of vehicle, battery 16 can via from The charging of vehicle power supply (not shown).

Traction motor 12,14, speed changer 18 and engine 30 can be with 50 electronic communications of controller.In a kind of configuration In, controller 50 for example may include engine control module 52 (ECM 52) for controlling the operation of engine 30, be used for Control the hybrid power control module 54 (HCM 54) of the operation of traction motor 12,14, and/or for controlling speed changer 18 The transmission control module 56 (TCM 56) of operation.Controller 50 may be embodied as at one or more digital computers or data Device is managed, each has one or more microcontrollers or central processing unit (CPU), read-only memory (ROM), random visit Ask memory (RAM), electric programmable read-only memory (EEPROM), high-frequency clock, analog to digital (A/D) and digital-to-analog (D/A) circuit and any desired input/output (I/O) circuit and/or signal modulation and buffer circuit.

ECM 52, HCM 54 and TCM 56 may be embodied as software or hardware and can physically be separated from each other or regardless of From.In one configuration, module 52,54,56 can be the piecemeal function of executing by the same physical structure of controller 50.? In another configuration, each module 52,54,56 can be associated with the hardware computing device of their own.Anyway, each module 52,54,56 can with other 52,54,56 digital communications of module, to coordinate the overall behavior of power transmission system of vehicle 10.It is each A module 52,54,56 is configurable to automatically carry out one or more control/processing routines, may be embodied as and module 52,54,56 relevant softwares or firmware.It should be noted that for clarity, describing the concrete configuration of " module ".But it is practical On, any concrete function described in a wherein module can be executed by another module, and alternatively, institute is functional can letter It singly is executed by controller 50, without module is individually identified.

It is engaged as described generally above with neighbouring component to the various hardware component property of can choose, to be formed from one or more A source of torque (i.e. traction motor 12,14 and engine 30) arrives the torque transmission paths of vehicle traction wheel 40.Engagement/disengagement Component, operation/not operation source of torque and torque generation/torque consumption mode (i.e. for motor 12,14) it is every One characteristics of combination can be " mode of operation (operating state) ".

In one configuration, controller 50 may further include state management module 58 (SMM 58), may exist In any one of ECM 52, HCM 54 and TCM 56, or it can be the separated module being generally shown in.SMM 58 can be from user Request, such as torque request from the user (such as from accelerator pedal 60 or coming from brake pedal 68) are received, and is determined Realize that the optimum operation conditions of (such as torque request) are requested in expectation.SMM 58 may include mode selector module 66, with pre- The prediction mode selection operation state of one or more trend (such as acceleration/deceleration trend in torque request example) is surveyed, together When also prevent electrical vehicular power power train 10 with can endanger the integrality of various motor as described above or transmission components or The mode in service life operates.Controller 50 determines the current behaviour of electrified powertrain 10 via SMM 58 in the illustrated example Make state and controls the operation of internal combustion engine 30, motor 12,14 and speed changer 18 in current operation status.Pass through SMM 58 for current operation status selection mode of operation be in multiple available action states of electrified powertrain 10 one A, wherein each mode of operation represents the different physical configurations of electrified powertrain 10.

Further, SMM 58 may include Free Region mark module 64, more in available action state for identification A available action region.Fig. 2 shows available action region for available action state illustratively to map 80.Based on behaviour Make the operative relationship between the first parameter X of state and at least the second parameter Y at least partially through under corresponding operating state The different physical configurations of electrified powertrain 10 determine each available action region 82,84,86.Each is accordingly grasped Make the operative relationship under state between the first parameter X and the second parameter Y at least partially through electrified under corresponding operating state The different physical configurations of powertrain 10 determine.In one example, the first parameter X is wheel of vehicle 40 and speed changer 18 Output shaft 42 couples to export the output torque in the case of the output torque, and the second parameter Y is that internal combustion engine 30 is being sent out Motivation speed is operated with the engine torque under output engine torque condition.In another example, the first parameter X is engine Torque, and the second parameter Y be internal combustion engine 30 with engine speed operation via 32 output engine of engine output shaft Engine speed under torque condition.

In another example, between the first parameter X based on mode of operation, the second parameter Y and third parameter (not shown) Operative relationship come under corresponding operating state at least partially through the different physical configurations of electrified powertrain 10 it is true Determine each of mode of operation available action region 82,84,86.In illustrative example shown in Fig. 2, operating area 86 (being further described herein to avoid region (avoidance region)) is at least partially through third parameter and the One and second parameter interaction limit.In this example embodiment, and referring to fig. 2, pass through multiple specified behaviour shown in specified line 90 Make the nominal parameter value that situation (operation condition) corresponds to third parameter.By shown in first borderline 92 The first boundary value that multiple first boundary conditions (example shown in its can be following boundary line) correspond to third parameter, can To be the lower boundary limits or tolerance value of third parameter.Similarly, pass through multiple the second boundaries shape shown in second borderline 94 Condition (example shown in its can be upper border line) corresponds to the second boundary value of third parameter, can be third parameter The coboundary limit or tolerance value.In the illustrated example, the first parameter X is output torque, and the second parameter Y is that engine is turned round Square, and third parameter is the motor torque of the motor 12,14 of powertrain 10.By term first and second and/or on It is not limiting applied to boundary applied to boundary 92,94 with lower.

First parameter X and the second parameter Y can continuous variable relative to each other in operational state so that the first parameter X The first parameter value X_nWith the second parameter value Y of the second parameter Y_nIn a first parameter value X in the first parameter X_nWith second The second parameter value Y of parameter Y_nIn another variation when keep constant.For example, being reflected by operating area shown in Fig. 2 and 4 It penetrates in the mode of operation shown in 80, the first parameter X may remain in steady state value, such as the first constant parameter value X₁, and second The value of parameter Y can change.First and second parameter value X_n、Y_nEach combination represent different operation situation, at each Multiple operating conditions are provided in mode of operation so that available action region 82,82,86 each by other than the operating area The respective range of operating conditions limits.By way of example, mode of operation shown in the state mapping 80 of Fig. 2 includes at least One avoids operating area 86 (shadow region for being shown as Fig. 2), allows 82,84 points of operating area to open at least two, wherein Operating area 82,84,86 each repel each other with other operating areas.In the illustrated example, region 86 is avoided to hold one Perhaps operating area 82 allows operating area 84 to separate with other, so that it is discontinuous and/or non-neighboring for allowing operating area 82,84 It connects, such as makes powertrain 10 have to be by avoiding the transformation of region 86 just from allowing operating area 82,84 One middle operational transition is another in operating area 82,84, such as is converted to from one in admissible region 82,84 Another period does not operate a fringe time (transition time) in avoiding region 86.

Operating area 86 is avoided referred to herein as to avoid region, and the ginseng in the boundary 92,94 by avoiding region 86 Numerical value X_n、Y_nThe operating conditions of restriction each defined herein as undesirable operating conditions.Allow operating area 82,84 at this Text is known as admissible region, and/or referred to as the first and second admissible regions, and provides the parameter value in each of admissible region 82,84 X_n、Y_nThe operating conditions of restriction each defined herein as allowing operating conditions.Admissible region 82,84 is avoided by region 86 and divides It opens, changes so that operating electrified powertrain 10 in the case where currently allowing operating conditions in one of admissible region 82,84 To allow the electrified needs of powertrain 10 of operation under operating conditions keeping away another in another of admissible region 82,84 Exempt to operate electrified 10 1 fringe time of powertrain in region 86, wherein powertrain 10 will be during fringe time At least one by avoiding region 86 from limiting does not expect to operate under operating conditions.Undesirable operating conditions are (wherein electrified dynamic Power power train 10 operates in avoiding region) such as feature can be noise, vibration, not pliable, power loss, electrified power The responsiveness of power train 10 lacks or other do not expect or do not need performance or operating feature.As such, it is desired to be avoid it is electrical Change powertrain 10 to operate under undesirable operating conditions (such as in avoiding region 86).Further, if it is electrified Powertrain 10 is inevitable in avoiding region 86 with undesirable operating conditions operation, for example, from admissible region 82, in one of 84 currently allow that operating conditions are changed into another for allowing operating area 82,84 another allow When operating conditions, then the time quantum for operating powertrain 10 in avoiding region 86 minimizes, so that The time quantum of the influence for the undesirable situation (such as power loss) that powertrain 10 is undergone minimizes, and/or makes vehicle The time quantum for the undesirable situation (such as noise or not pliable) that user undergoes and/or is subject to minimizes.In powertrain 10 are changed into allowing another in operating area 82,84 from the operating conditions in one in admissible region 82,84 When another operating conditions, the time that powertrain 10 operates in avoiding region 86 is referred to herein as fringe time.

Operative relationship between the first parameter X and the second parameter Y based on mode of operation is at least partially through corresponding The different physical configurations of electrified powertrain 10, which determine in mode of operation, under mode of operation avoids region 86, so that avoiding Each operating conditions in region 86 (such as avoid X in region 86_n、Y_nEach combination) be undesirable operating conditions.It keeps away Exempt from not expect each amount, perceptibility and/or severity of operating conditions relative to avoiding other in range 86 in region 86 Each amount, perceptibility and/or severity of undesirable operating conditions can change.For example, with by avoiding in region 86 The corresponding undesirable operating conditions of one of multiple specified undesirable operating conditions for limiting of line 90 (Fig. 2 by a dotted line shown in) Amount, perceptibility and/or severity can than with avoid region 86 boundary 92,94 (in Fig. 2 by shown in solid) in it Parameter X in region 86 is avoided near one_n、Y_nThe corresponding boundary of combination do not expect the amounts of operating conditions, perceptibility and and/or Severity is worse.

As previously mentioned, avoiding region 86 can the first parameter X, the second parameter Y based on mode of operation in mode of operation The difference that operative relationship between third parameter (not shown) passes through powertrain 10 electrified under corresponding operating state Physical configuration determines.In the illustrated example, avoid the specified line 90 in region 86 can be at least partially through third parameter Specified third parameter value determine, wherein avoid region 86 with the first and second boundaries 92,94 for boundary, described first and second Boundary can be the lower boundary limited respectively by lower third parameter value and upper third parameter value and coboundary respectively.In an example In son, the first parameter X is engine torque, and the second parameter Y is engine speed, and third parameter is the electricity of powertrain 10 The motor torque of motivation, so that region 86 is avoided to determine at least partially through the motor torque of motor.In the example In, it is undesirable to operating conditions feature can be due to motor, engine and speed changer avoid the operation in region 86 it Between interaction caused by do not expect or undesired noise (such as thundering), by state map 80 shown in operate shape The analog value range of the engine torque in region 86, output torque and motor torque is avoided to limit in state.

Referring again to the illustrative example of mode of operation shown in Fig. 4 mapping 80, identified in point A, B, C, D, E and F multiple The sampling of operating conditions, wherein operating conditions A, B and D is in allowing operating area 82, and operating conditions C, E, F are allowing to operate In region 84.In an example shown, the first parameter value X₁It can keep constant and the second parameter value Y_nVariation, such as from Y₁Variation To Y₂, then change to Y₃.Similarly, the second parameter value Y₁It can keep constant and the first parameter value X_nVariation, such as from X₁It changes to X₂。

The example of mode of operation mapping 80 shown in Fig. 2 is illustrative and unrestricted.For example, being used for powertrain The corresponding state mapping 80 of 10 each corresponding operating situation is unique for corresponding operating state, so that each phase Answer state mapping can from shown in Fig. 2 and 4 and the mapping of the exemplary status described in illustrative example as described herein is 80 different. For example, the quantity in available action region can be different from the shown example in Fig. 2 in mode of operation.Pass through unrestricted example Son, mode of operation can only have an available action region, and wherein available action region, which can be, avoids region or allow area Domain.In operating area and the identical event of mode of operation, using such as further in method described herein 100 by mode of operation It is evaluated as operating area.In another example, mode of operation may include it is multiple avoid region, provincial characteristics mutually should be avoided in each It is different undesirable situations, wherein each avoids region from separating at least one Free Region and another Free Region. The example is non-limiting and powertrain 10 can operate under operating conditions, and the operating conditions have multiple Allow and avoid region (not being described in detail herein) and combinations thereof.

It for purposes of illustration, the use of the first parameter X is output torque and the second parameter value Y is the example of engine torque Son, in mode of operation shown in Fig. 4, electrified powertrain 10, which is operable as output, has constant output torque value (example Such as X₁) output torque (X), and engine torque (Y) include Y₁、Y₂And Y₃Change between various engine torque values inside Become.In this way, when being operated under electrified powertrain 10 mode of operation shown in Fig. 4, and in this example embodiment, output torque Steady state value X can be remained₁, while corresponding to relatively low engine torque value Y₁One allow in operating area 84 first Operating conditions C and correspond to relatively high engine torque value Y₂Another the second operating conditions B allowed in operating area 82 Between change.By the operating conditions of electrified powertrain 10 in relatively low engine torque value Y₁Relatively high engine is turned round Square value Y₂Between change, while keeping output torque value constant in X₁, this needs vehicle not expect in operating conditions at least one Third operating area 86 (avoiding region shown in shadow region shown in Fig. 2 and 4) in operation and by allowing electrified power Power train 10 is allowing to change required a part of fringe time between operating conditions C and B.It is desirable that by electrified power Power train 10 is for example converted to operating conditions C from operating conditions B, so that electrified powertrain 10 is in relatively low engine Torque value Y₁Output torque X to wheel 40 is maintained at same output torque value X simultaneously by lower operation₁To reduce power consumption, example Such as improve vehicle efficiency and allowing vehicle to operate at low-power consumption operating conditions C (relative to operating conditions B).

Similarly for the example, under operating conditions shown in Fig. 4, engine torque (Y) is positively retained at constant engine Torque value, such as Y₁, while by output torque value X_nSuch as from X₁Change to X₂.In this way, allowing electrified powertrain 10 to exist When operating under mode of operation shown in Fig. 4, and in this example embodiment, engine torque is positively retained at steady state value Y₁, while allowing In operating area 84 and correspond to relatively low output torque value X₁First allow operating conditions C and also allowing operating area 84 In but correspond to relatively high output torque value X₂Second allow to change between operating conditions F.In this case, it allows electrical Change the operating conditions of powertrain 10 in relatively low output torque value X₁Relatively high output torque value X₂Between transformation simultaneously general Engine torque is maintained at steady state value Y₁, will not need that vehicle is allowed to change by third operating area 86, and vehicle is allowing to grasp Make region 84 and operate entire fringe time, for allowing electrified powertrain 10 to change between operating conditions C and F.It is uncommon Hope, for example, in response to by controller 50 receive for by output torque value from X₁Increase to X₂Change request, allow electricity The powertrain 10 that gasifies is converted to operating conditions F from operating conditions C, thus with relatively high output torque value X₂To wheel 40 An output torque is exported, while allowing engine with constant engine torque value Y₁Operation, wherein changing request can be user couple The response that wagon accelerator 60 inputs.

Referring again to Fig. 1, SMM 58 includes for determining the excellent of the optimised operating conditions of electrified powertrain 10 Change module 62, wherein determine that optimised operating conditions include identification, determine (arbitrate) and the optimised operating conditions of selection, To allow operation of the electrified powertrain 10 in the available action state of powertrain 10 under the optimization operating conditions It is operated in one of region 82,84,86, wherein optimised operating conditions are partially by it in first and second parameter value X, Y One required parameter value limits.Required parameter value can be the current value of one of first and second operating parameter X, Y, need by The value is maintained at steady state value with the current operation demand for powertrain 10.Select optimised operating conditions (such as herein Described in provided method) it include allowing to identify at least in operating area 82,84 at least one of available action state One ideal operation situation." optimised " situation is directed to the one or more optimizing factors assessed by optimization module 62 The corresponding situation of the operating conditions of required optimizing parameter values.Optimised situation can be at least one identified by optimization module 62 One of a ideal operation situation and current operating situation.The case where optimised situation is determined not to be current operating situation Under, the ideal operation situation for being confirmed as optimised situation can be referred to as target condition, and controller 50 generates order, with life Powertrain 10 is enabled to be converted to target (optimised) situation.

Required parameter value can be the value request of one of first and second operating parameter X, Y, be connect by controller 50 The input of receipts is requested, wherein requested value can be with requested one current value in first and second operating parameter X, Y It is different.For example, required (requested) parameter can be the first parameter X, i.e., powertrain 10 in this illustrative exemplary Output torque, and required (requested) parameter value can be the steady state value X of the output torque of wheel 40₁, as to The change that input of the family to accelerator 60 responds requests and is input to controller 50.It is requested in response to changing, controller 58 Optimised operating conditions are determined via the SMM 58 for including optimization module 62, parameter value X needed for generating₁, wherein optimised Operating conditions pass through steady state value X₁(requested output torque) and the second parameter Y (being engine torque in this example embodiment) Optimal value limits.When determining optimised operating conditions, 50 order powertrain 10 of controller is converted to optimised behaviour Make situation.

The optimised operating conditions selected by optimization module 62 are usual and/or are preferably the appearance in available action state Perhaps operating conditions are allowed in operating conditions, such as one of the admissible region 82,84 of available action state shown in Fig. 2.But It is, it should be appreciated that in such as event of the parameter value needed for allowing operating conditions that cannot be identified as capable of generating, optimize operating conditions It can be the undesirable operating conditions in undesirable region 86.Optimised operating conditions are also known as optimised situation herein.

SMM 58 and/or optimization module 62 include optimization program, for identification, determine and determine for required parameter value Optimization situation.Optimization program determines that the one or more for each the available action situation assessed for optimised module 62 is excellent Change factor.Optimizing factors may include preferred factor (preferability factor), avoid in factor and stabilisation factor One or more, wherein these factors each can further pass through the sub- factor of additional optimization and limit.It is preferred that factor example It can such as be limited by the factor based on performance, the factor based on efficiency and based at least one of factor avoided.It is based on The factor of performance can be limited at least partially through the performance characteristic of powertrain 10, such as output torque, engine speed Degree, motor torque, engine torque etc..Power based on the factor of efficiency at least partially through powertrain 10 uses It limits, can include determining that the power loss and/or power factor of powertrain 10.At least based on the factor avoided Partially by being avoided region 86 another in admissible region 82,84 from allowing one of operating area 82,84 to be converted to The detectability (detectability) of undesirable situation is limited in transition process.Avoid factor can be at least partly Influence, user by undesirable situation to 10 performance of powertrain is to the detectability of undesirable situation and/or through avoiding The amount of the undesirable situation undergone in the transition process in region 86 limits.Stabilisation factor passes through transition cost, dominant index (leading indicator) and powertrain 10, which are converted in ideal or required conditions, is avoided region 86 from allowing One of region 82,84 is converted to another fringe time in admissible region 82,84 and limits.Terms used herein are leading to be referred to Mark is to indicate that the change of the operating conditions of powertrain 10 will occur and/or will be in the very short time after current time The index of this change is needed, wherein should weigh the required of operating conditions during determining stabilisation factor and be changed as not The expection of evitable change.

SMM 58 and/or the determination of optimization module 62 are true for the optimizing factors of current operating situation and by required parameter value At least one fixed ideal state, required parameter value can be current or request parameter value, and then relative to other ideals Each by SMM 58 is considered potential optimised operating conditions to operating conditions, determines that each operating conditions is thought by SMM 58 It is the optimizing factors of potential optimised operating conditions, to select optimised situation.Determine ideal (potential quilt relative to each other Optimization) operating conditions to select the optimised situation to may include, optimize the one or more of each potential optimised situation Factor is weighed and is classified, with the optimised situation of determination.Optimised situation (the non-present shape selected by optimization module 62 Condition) be identified as target condition, and controller 50 in response to optimised situation selection and order powertrain is converted to mesh Mark situation.

Each module 62,64,66 is configurable to automatically carry out one or more control/processing routines, can be with It is embodied as and the relevant software of module 62,64,66 or firmware.The concrete configuration of " module " is should be noted that for a clear description. But in fact, any concrete function described in one of 66 can be by the another of powertrain 10 in module 62 64 Module executes, and alternatively, institute is functional can be executed simply by SMM 58 or controller 50, without individually specifying module.

Fig. 3 shows method 100, is used in electric power power train (such as electrified powertrain shown in FIG. 1 10) the available action region in multiple modes of operation is determined in, and quilt is selected in available action region based on required parameter value Optimize operating conditions.Method 100 is described with reference to Fig. 3 and 4, wherein for purposes of illustration, and pass through unrestricted example, In state mapping 80 shown in Fig. 4, as an illustrative example, the first parameter X is identified as powertrain 10 Output torque, and in the illustrated example, the second parameter Y is identified as the engine torque of engine 30, and wherein state is reflected Penetrating 80 is one of multiple available action states of powertrain 10.Such as by controller 50 via SMM 58 and/or warp Method is executed by one or more of mode selector module 66, Free Region mark module 64 and optimization of region module 62 100.Method 100 may be embodied as software program, can be eventually by one or more of electrified powertrain 10 Controller executes, such as controller 50.

Such as use state management module 58 determines the available action shape of electrified powertrain 10 by controller 50 State starts method 100 in step 105.Current operation status is in multiple available action states of electrified powertrain 10 One of, wherein different physical configurations of each available action status representative electrification powertrain 10.As previously mentioned, available Mode of operation each can schematically be shown by state mapping map as the mapping of state shown in Fig. 2 and 4 80, wherein shape State mapping 80 shows the available action region 82,84,86 in corresponding operating state, and wherein available action region 82,84, 86 limit at least partially through the first and second parameters X, Y, and can further be limited by third parameter (not shown).? In illustrative example, at least partially defining and avoiding the third parameter in region 86 is it in the motor of powertrain 10 The motor torque of one (such as motor 14), wherein in the current operation status representated by state mapping 80, motor 14, Each the operation of engine 30 and speed changer 18 can be controlled as multiple operating conditions shown in production status mapping 80.

By unrestricted example and for purposes of illustration, mode of operation described in Fig. 4 mapping 80 be identified as A, B, C, D, E, F represent a part or sample of the manipulable multiple operating conditions of powertrain 10 under current operation status This.In multiple operating conditions it is corresponding each pass through second parameter value Y corresponding to the second parameter Y's_nThe first ginseng being combined The corresponding first parameter value X of number X_nIt determines, and further by including first and second parameter value X corresponding with the operating conditions_n And Y_nCorresponding operating region limit.For example, operating conditions A corresponds to the first and second parameter value X₁、Y₃And allow defining In the range of first and second parameter values of operating area 82, so that operating conditions A is to allow operating conditions.Similarly, it operates Situation E corresponds to the first and second parameter value X₂、Y₂And defining the model for allowing the first and second parameter values of operating area 84 In enclosing, so that operating conditions E and be to allow operating conditions.

Admissible region 82,84 is non-conterminous, but by avoiding region 86 from separating shown in Fig. 2 and 4, so that powertrain 10 operation needs power from one of admissible region 82,84 to the transformation of another operating conditions in admissible region 82,84 Power train 10 is by avoiding region 86 to be changed (such as powertrain 10 is allowed to operate in avoiding region 86) and passed through It allows power transmission to tie up to allow to change between operating conditions A and E the required transformation duration, and by avoiding in region 86 Multiple undesirable operating conditions simultaneously pass through a duration, and undesirable operating characteristics are generated within the duration (such as preceding institute State), the undesirable operating characteristics can be detected by vehicle user or can be to powertrain 10 and/or including powertrain 10 Vehicle performance have undesirable influence.In illustrative shown example, it is undesirable to which operating characteristics can be, and avoid It is moved in the range of operating conditions in region 86 by what the interaction of motor 14 and engine 30 and speed changer 18 generated Power noise of driving system, this is avoided region from being for example boundary with boundary 92,94 and is limited by specified third parameter value, the volume Fixed third parameter value is motor 14 corresponding with the multiple undesirable operating conditions limited by line 90 in the present example The rated value of motor torque, wherein boundary 92,94 is joined by upper third parameter value (motor torque value) and lower third respectively Numerical value (motor torque value) determines.

In step 110, method 100 continues to use controller 50 and for example identifies that each is available via zone marker module 64 Available action region in mode of operation.For example, zone marker module 64 is directed to available action shape shown in Fig. 4 in step 110 State 80 identifies multiple available action regions 82,84,86.Each available action region 82,84,86 represents available action state 80 In operating conditions different range.All available actions of electric power power train 10 have been identified in zone marker module 64 Step 110 is completed when all available action regions of state.

In step 115, controller 50 for example determines whether that any Free Region is to avoid via zone marker module 64 Region.In the illustrated example, Free Region 86 is identified as avoiding region 86.

In step 120, zone marker module 64, which identifies in available action region, allows operating area.In illustrative example In son, operating area is allowed to include at least the first admissible region 82 and the second admissible region 84, wherein first and second allow area Domain 82,84 is avoided by region 86 and separates, so that admissible region 82,84 is not adjacent to each other.

In step 125, controller 50 for example determines electrified power in current operation status via state management module 58 The current operating situation of power train 10, wherein current operating situation is limited by current first parameter value and current second parameter value It is fixed.One of first parameter value and the second parameter value are the desirable values for current operating situation, so that required parameter value is to working as It is steady state value for preceding operating conditions.In the illustrated example, current operating situation can be operating conditions A shown in Fig. 4, Corresponding to current first and second parameter values X₁、Y₃, wherein required parameter value is value X₁, such as required parameter is output torque, In for the present situation, output torque needs are held constant at value X₁。

In step 130, method continues, and for example allows operating area via the identification of optimization of region module 62 using controller 50 In each corresponding corresponding ideal operation situation, allowing operating area includes the first and second admissible regions 82,84, wherein often One corresponding ideal operation situation passes through one and the first parameter value and second constant in the first parameter value and the second parameter value The corresponding ideal value of another in parameter value limits.In this illustrative example, optimization module 62, which can determine, is allowing to operate Constant parameter value X is used in region 84₁Ideal operation situation be to pass through X₁、Y₁The operating conditions C of restriction, and allow operating space Constant parameter value X is used in domain 82₁Ideal operation situation be to pass through X₁、Y₂The operating conditions B of restriction.Similarly, optimization module Each of 62 identifications for identifying in the step 120 allows the ideal operation situation of operating conditions.In an example shown, lead to The operational efficiency for considering powertrain 10 is crossed, operating conditions B, C can be identified as the corresponding ideal behaviour of admissible region 82,84 Make situation, wherein operating conditions B corresponds to the minimum engine torque in admissible region 82, can under the minimum engine torque Output torque X needed for generating₁, and operating conditions C corresponds to the appearance compared with operating conditions B with relatively lower engine torque Perhaps the operating conditions in region 84 can produce required constant output torque X under the engine torque₁, so that relative to working as Preceding operating conditions A, operating conditions B and C represent the increase operational efficiency with engine torque/output torque than measurement.In this way, In the example, corresponding ideal operation situation B, C each correspond to produce current institute in each corresponding admissible region 82,84 Need the current value X of parameter value X₁Lowest power be lost operating conditions.

In optional step 135, method 100 can continue, controller 50 for example via SMM 58 inquire (poll for) when The dominant index of the potential change of one of preceding first parameter value and current second parameter value, be used to determine whether to contemplate from The transformation of one of current first parameter value and current second parameter value.Desired change may include operating conditions, operation One or more change in region and mode of operation.Inquiry dominant index may include such as inquiry power ++ power train 10 The operating conditions of one or more components, to determine whether to anticipate transformation, such as to realize power consumption target or other property It can target.Inquiry for example may include inquiring the travelling route obtained from the navigation system (not shown) communicated with controller 50, Anticipate power requirement shown in travelling route changes, speed changes etc..Inquiry for example may include using controller 50 and/or The data in one or more of controller 50, ECM52, HCM 54 and TCM 56 are stored in analyze going through for powertrain History performance, by based on history powertrain performance and/or data usage trend and/or in a manner of identify it is one or more leading Index.When step 135 recognizes dominant index, dominant index can be for communication to controller 50, SMM 58 and/or optimization module 62, for determining the preferred factor, stabilisation factor and/or optimised operating conditions of powertrain 10, such as further at this Text description.

Method continues in step 140, and controller 50 is for example every for identifying in step 120 via the determination of optimization module 62 The preferred factor of one corresponding ideal operation situation, in this illustrative example include determine for corresponding admissible region 82, Each preferred factor of 84 corresponding ideal state B and C, and further determine that the preferred factor for the present situation, It is to allow operating conditions A in this example.It is preferred that factor is by the factor based on performance, factor based on efficiency and based on avoiding At least one of factor limits.As previously mentioned, can be at least partially through being avoided region 86 from existing based on the factor avoided The detectability of undesirable situation is limited during being changed between admissible region 82,84.It can be at least partly By being determined to being expected from the present situation to the fringe time that (determination avoids factor targeted) operating conditions change Avoid factor.At least partly it can indicate whether to contemplate by avoiding region from being changed by what is determined in step 135 Dominant index and determination avoid factor.

It is for example corresponding via each determining for being identified in step 130 of optimization module 62 in step 145 controller 50 Ideal operation situation and stabilisation factor for current operating situation include determining for ideal state B in the present example With C each and for the present situation A stabilisation factor.By transition cost, dominant index and through avoiding region 86 from One of first and second admissible regions 82,84 are converted to another fringe time in the first and second admissible regions 82,84 At least one of limit stabilisation factor.It can be at least partially through allowing powertrain 10 from the present situation (in this example It is situation A in son) unstable another operating conditions of changing to (it can make one of ideal state B and C in the present example) Transition cost is limited at original.At least partly it can indicate whether to contemplate by avoiding area by what is determined in step 135 Dominant index that domain is changed and determine stabilisation factor.

Method continues in step 150, for example determines the excellent of current operating situation via optimization module 62 using controller 50 Factor and stabilisation factor ideal operation situation corresponding with each are selected, to identify optimised operating conditions, such as in this example The middle preferred factor for determining operating conditions A, B and C and stabilisation factor, parameter value needed for being produced with identification (are in the present example Output torque value X₁) optimised operating conditions.It (is corresponded in this way, optimised operating conditions are determined as current operating situation In X₁、Y₃A) one of or one of corresponding ideal state for identifying in step 130 (it includes ideal in the illustrative example Situation B (X₁、Y₂) and C (X₁、Y₁), wherein each of these situations A, B and C passes through required steady state value X₁It limits.For example As in the present example for each decision of current operating situation A and each ideal operation situation (including operating conditions B and C) Operating conditions each determine preferably to may include with stabilisation factor, for preferably with the factor of stabilisation each and/or For determine preferably with each each prescription factors value of sub- factor and/or weight of the factor of stabilisation.By determining to work as Preceding and ideal state and determine that optimised operating conditions carry out end step 150, and method proceeds to step 155.

In step 155, controller 50 for example when the current operating situation that step 150 determines is optimised situation via The electrified powertrain 10 of one or more orders in SMM 58 and/or ECM 52, HCM 54 and TCM 56 keeps current Operating conditions or order powertrain 10 are changed into the optimised operating conditions determined in step 150 from current operating situation. By example, and this example is used, it is dynamic in step 155 if being determined that optimised situation is the present situation A in step 150 Power power train 10, which is command by, maintains the present situation A.This for example occurs in a case where: being converted to ideal shape from the present situation A The lower engine torque value Y of condition B₂(its efficiency for being based at least partially on the operation powertrain 10 at ideal state B is excellent Gesture and/or reduce power loss determine) preferred factor unlike at least partially through transition cost penalties (itself and power transmission Be 10 from the present situation A become it is unstable in relation to) the stabilisation factor that determines is more important, and be converted to ideal from the present situation A The lower engine torque value Y of situation C₁(it is based at least partially on the efficiency that powertrain 10 is operated at ideal state C Advantage and/or reduce power loss and determine) the preferred generation and detectable ability for passing through undesirable operating conditions because of procatarxis It has been offset from by fringe time needed for avoiding region 86 from being converted to ideal state C, has been determined by stabilisation factor, it is described steady Surely it is true at least partially through unstable relevant transition cost penalties is become from the present situation A to powertrain 10 to change factor It is fixed, and fringe time needed for being converted to ideal state C be not enough to overcome it is relevant with holding current operating situation A preferably and surely Surely change the combination of factor.

By example, and this example is used, if in step 150, it is determined that optimised situation is ideal state B, then exists Step 155 powertrain 10 is command by the ideal state B that powertrain 10 is converted to optimization.This for example can be following In the case of occur: for the lower engine torque value Y from the present situation A to ideal state C₁Transformation preferred factor (with it is dynamic Power power train 10 changes relevant stabilisation factor combination from the present situation A to ideal state C), the slave the present situation A determined It is converted to the lower engine torque value Y of ideal state B₂(it becomes unstable related from the present situation A to powertrain 10 Stabilisation factor be combined) realize such a determination: i.e. powertrain 10 is converted to excellent from current operating situation A Change ideal state B for example than keeping the present situation A without realizing that the efficiency gain for being converted to ideal state B is more advantageous, and power Power train 10 is converted to optimization ideal state B from current operating situation A and is for example converted to (unoptimizable) reason than powertrain 10 Think that situation C (it has the relevant transition by avoiding region 86) is more advantageous.

Similarly, if in step 150, determine that optimised situation is ideal state C, then in step 155, power transmission It is 10 to be command by powertrain 10 is converted to optimised ideal state C.This can for example occur in a case where: be directed to From the present situation A to the lower engine torque value Y of ideal state B₂Transformation preferred factor (its with powertrain 10 from The stabilisation factor combination that the present situation A changes to ideal state B), the slave the present situation A determined is converted to ideal state C Lower engine torque value Y₁(with by avoiding what region 86 changed from avoiding factor and powertrain 10 from current shape Condition A becomes unstable relevant stabilisation factor and is combined) realize a kind of determination: i.e. powertrain 10 is from current operation shape Condition A is converted to optimised ideal state C ratio and keeps the present situation A more advantageous without the efficiency gain for realizing transformation ideal state C, It is also such as when undesirable situation occurs in fringe time needed for powertrain 10 is even converted to ideal state C in consideration This.

In the example shown in Fig. 3, after step 155, step 160 and 165 be may be performed simultaneously.In step 160, such as The optimised ideal state of fruit is not current operating situation, then in response to the order generated in step 155, electrified powertrain 10 are converted to optimised ideal operation situation from current operating situation.In step 160, method can repeat in a looping fashion, then For the secondary step 105 that returns to start, current operating situation passes through optimised operating conditions (the wherein electricity when step 155 and 160 are completed Gasification powertrain 10 is transformed and/or is operating) it limits, so that the optimization of operating conditions is recurred, or with needle The circulation time determined to powertrain 10 occurred at intervals.In one example, method 100 is followed with what is started in step 105 Ring mode is repeated every 100 milliseconds (msec).

In step 165, powertrain 10, which is for example inquired using controller 50, changes request, changes request with identification, One of first and second parameter values limited by current operation status are requested to change from current value to requested value.If not yet Detect change request, then method 100 is configurable to return to step 105 in a looping fashion, to reappraise current operation Situation, for optimizing

If necessary to change from current operation status, then SMM 58 is for example via situation selector 66 and/or controller 50 And/or one or more of ECM 52, HCM 54 and TCM 56 carry out order powertrain 10 and change from current operation status Mode of operation to request and the initial operation situation being converted in mode of operation, wherein initial operation situation is done to request is changed Respond out, for example, initial operation situation generate change request needed for parameter value, but wherein initial operation situation can be or It can not be the optimised situation for required parameter value.Method continues in step 105, as previously mentioned, using the operation of request State is as current operation status and uses initial operation situation as current operating situation, and wherein step 105, is being advanced past SMM 58 identifies available action state, with the optimised operating conditions of determination, the optimised operation shape before step 110 to 155 Condition is limited at least partially through constant parameter value needed for changing request, and as further described herein.

Ginseng is seen figures 3 and 4, and in the example child of non-limitative illustration, will request the in step 165 received change request One parameter X (being output torque in the present example) is from current parameter value X₁Increase to increased output torque value X₂, wherein for The purpose current operating situation of displaying corresponds to the first and second parameter value X₁、Y₂Allow situation B.In this way, required parameter value (such as requested in the received change request of step 165) is with steady state value X₂Output torque X, need powertrain 10 are converted to the constant output torque value X partially by request from current operating situation B₂The operating conditions of restriction.In step 130, in the present example, controller 50 identifies preferably requested shape in each available action region that step 110 identifies Condition, including correspond to X in admissible region 84₂、Y₁Ideal be requested situation F, and correspond to admissible region 82 in X₂、Y₃Reason Think requested situation D.

Method 100 can continue to optional step 135, wherein the dominant index of the inquiry of controller 50 foregoing description, or after Continue step 140, wherein controller 50 is for example determined via optimization module 62 for each corresponding ideal requested operation shape The preferred factor of condition (as described herein step 130 identification as before), and determine in step 145 and accordingly managed for each Think the stabilisation factor of requested operating conditions, in the illustrative example includes ideal requested operating conditions F and D.It stabilizes Factor can be limited at least partially through the response time, to be converted to accordingly requested operating conditions from current operating situation.

In step 150, each of controller 50 for example via the decision of optimization module 62 for identifying in step 130 is corresponding The preferred factor and stabilisation factor of the requested operating conditions of ideal include ideal requested situation F and D in the present example, and Some of which is identified as to optimised requested operating conditions.For example, in step 150, being requested operating conditions D can be by Be selected as optimised requested situation, wherein optimization module 62 determine preferably requested situation F and D preferably and stabilize Factor, and determine and be converted to operating conditions D (to produce requested output torque value X₂) relative to being converted to for operating conditions F Be it is optimal, this will demanded driving force power train 10 operation through avoiding region 86 change.In the present example, relative to operation shape Condition F by operating conditions D be determined as it is optimal may include, determine to preferably with stabilize the contributive sub- factor of factor, such as It is respectively used to export requested output torque X₂Situation F, D engine torque Y₁、Y₃Relative level, in the dynamic of situation F, D The opposite operating efficiency of power power train 10 is converted to the fringe time of requested situation F from the present situation B, is included in from situation B Ideal requested situation is converted to by the fringe time for avoiding region 86 from changing, and from the present situation B to during situation F transformation Each fringe time of F and D, to produce requested torsion relative to the scheduled target response time of powertrain 10 Square output valve X₂, to transmit from current value X₁Change to value request X₂Torque export change.In illustrative example of the invention In, step 150 optimization module can for example based on be converted to from the present situation B requested situation D more short response time, Determine ideal requested situation F and D preferably with stabilisation factor after, determine the requested operating conditions of optimization, relatively In situation F situation D relatively high engine torque Y₃Under have a higher responsiveness, and by avoiding that region 86 is avoided to carry out Change and avoid undesirable feature, as being converted to needed for (unoptimizable) be requested situation F, wherein starting with definition condition F Machine torque Y₁The relatively high operational efficiency of lower engine 30 is compared, engine torque Y of these positive factors than definition condition D₃ The relatively low operational efficiency of lower engine 30 is more important.

In step 155, in the present example, controller for example orders electrified powertrain 10 from current via SMM 58 Operating conditions B is converted to the requested operating conditions F of optimization, to produce the parameter value of request, such as output torque X₂.In step 160, in the present example, powertrain 10 is changed into the requested operating conditions D of optimization from current operating situation B, with production The parameter value of request, such as output torque value X₂, and method is circulated back to step 105.

Although better model of the invention to execution has carried out detailed description, skilled person will appreciate that It is used to implement many alternative designs and embodiments of the invention in the range of the attached claims.Purpose is above-mentioned and attached All the elements shown in figure should be understood to be merely exemplary rather than restrictive.Furthermore the no label in claim Only for conveniently and without any restrictions acting on.

Claims

1. a kind of method for managing electrified powertrain mode of operation, method include:

At least one available action state of electrified powertrain is determined via controller；

The multiple operating areas limited by least one available action state are determined via controller；

Wherein at least one available action state is operable in multiple operating conditions；

Plurality of operating area it is corresponding each represent multiple behaviour at least one available action state in corresponding one Make the different range of situation；

Wherein at least one available action state includes current operation status；

Plurality of operating area includes the current operating region limited by current operation status；

Plurality of operating conditions include the current operating situation in current operating region；

Current operating situation is determined via controller；

Via the corresponding ideal state in each corresponding in controller identification available action region；

The preferred factor for being used for each corresponding ideal operation situation and current operating situation is determined via controller；

The stabilisation factor for being used for current operating situation ideal operation situation corresponding with each is determined via controller；

The preferred factor of current operating situation ideal operation situation corresponding with each is determined via controller and stabilizes factor, To identify optimised operating conditions；

The characteristics of wherein at least one mode of operation is the first parameter with the first parameter value and with the second parameter value Two parameters；

Each is corresponding to the second parameter by corresponding first parameter value of the first parameter for plurality of operating conditions corresponding Second combining parameter values determine；

Wherein current operating situation is limited by current first parameter value and current second parameter value；

Wherein one in the first parameter value and the second parameter value is the steady state value for current operating situation；

Wherein each corresponding ideal operation situation passes through one steady state value constant in the first parameter value and the second parameter value And first the corresponding ideal value of another in parameter value and the second parameter value limit；With

Wherein optimised operating conditions are one in current operating situation and object run situation, and the object run situation is logical Cross one steady state value constant in the first parameter value and the second parameter value and the corresponding ideal corresponding to optimised operating conditions Another corresponding ideal value in second parameter value and the first parameter value limits.

2. the method as described in claim 1 further comprises:

The dominant index of one potential change in the first parameter value and the second parameter value is inquired via controller.

3. the method as described in claim 1 further comprises:

One in the first parameter value of request and the second parameter value change request changed to requested value is identified via controller；

Identify that corresponding in each of corresponding in the first and second admissible regions is requested operating conditions via controller；

The wherein requested value and first that each corresponding requested operating conditions passes through one of the first and second parameter values It is limited with another corresponding ideal value in the second parameter value；

The preferred factor for each corresponding requested operating conditions is determined via controller；

The stabilisation factor for each corresponding requested operating conditions is determined via controller；With

The preferred factor for each corresponding requested operating conditions is determined via controller and stabilizes factor, to identify quilt The requested operating conditions of optimization.

4. method as claimed in claim 3, wherein at least accordingly asked partially by being converted to from current operating situation The response time of operating conditions is asked to limit stabilisation factor.

5. the method as described in claim 1, corresponding one in wherein at least one available action state limit avoid region, First admissible region and the second admissible region；

Wherein the first and second admissible regions are avoided by region and separate, so that the first and second admissible regions are non-conterminous；With

It is operated electrically in the second admissible region so that operating electrified powertrain from the first admissible region and being changed into Change powertrain to need to operate electrified powertrain in avoiding region and pass through a fringe time.

6. method as claimed in claim 5, wherein operating electrified powertrain in avoiding region generates undesirable behaviour Make situation.

7. method as claimed in claim 6, wherein the characteristics of undesirable operating conditions be electrified powertrain noise, At least one of vibration, not pliable, power loss and responsiveness shortage.

8. the method as described in claim 1, wherein each corresponding ideal operation situation corresponds to for each corresponding appearance Perhaps in region in the first and second parameter values when previous current value lowest power be lost operating conditions.

9. a kind of vehicle including electrified powertrain, vehicle can be grasped under the mode of operation of electrified powertrain Make, vehicle includes:

Controller, the method for executing the available action region in the mode of operation for managing electrified powertrain, method Include:

Current operating situation is determined via controller；